Pico CMS Access Control to web site url sub folders

Question:
Is it possible to assign different Circles to web site subfolders to limit access to individual web page sub folders ?
I am not asking about controlling editing access but controlling who can see different parts of the web site.

You can share a private website’s source folder with any Circle you want. If you don’t want the members of that Circle to edit your website, simply create a read-only share.

Let me rephrase:
I am not asking about controlling access to the source files but access to different parts of the generated web site.

You can use the access meta header to explicitly allow access of certain groups to specific pages. But apart from that: No, that’s not possible right now.

I want to restrict the web access of a page.
In the sample_template, I added the access meta tag access and gave Admins access.

---
Title: Welcome
Description: Pico is a stupidly simple, blazing fast, flat file CMS.
access: Admins
---

When I browse to the page, I get

Access forbidden
You don’t have access to this website page. Maybe the share was deleted or has expired?

I log in as a user of the Admins group and browse to the sample_template page, but the message is the same.

What am I doing wrong?

Found the error.
The group of admins is displayed Admins but must be written admin

This way it works

---
Title: Welcome
Description: Pico is a stupidly simple, blazing fast, flat file CMS.
access: admin
---